<div class="layui-form-item">
    <label class="layui-form-label">{$form.title}</label>
    <div class="layui-input-block">
        <?php foreach($form['value'] as $k=>$v){?>
        {if empty($info)}
        <input type="radio" name="{$form.field}"  value="{$k}" title="{$v}">
        {else}
        <input type="radio" name="{$form.field}"  value="{$k}" title="{$v}" <?php if($info->getData($form['field']) == $k){?>checked<?php }?>>
        {/if}
        <?php } ?>
    </div>
</div>